UV laser marking machine is a solid-state UV laser. According to the pumping mode, it can be divided into xenon lamp pumped UV laser, k-lamp pumped UV laser and new laser diode pumped all solid state laser. Because of the high energy of uv photons, it is difficult to generate high-power continuous uv laser through external excitation sources. The shortest wavelength is 370 nm. It can work continuously at 348 nm, while it can work pulse at 343 nm, that is, 355 nm laser. Domestic ordinary ultraviolet lasers basically adopt laser cavity design, acousto-optic Q-modulation technology and high-precision cooling system, which are suitable for various laser applications. This series of lasers are mainly used for fine processing and engraving, especially for the marking and micro perforation of food and medical packaging materials, high-speed segmentation of glass materials, complex graphics processing and cutting of silicon wafers. It is widely used in military, processing, medicine and scientific research. It is usually used for ranging, tracking, guiding, drilling, cutting and welding, semiconductor material annealing, electronic equipment micro processing, atmospheric detection, spectral research, surgery and ophthalmic surgery, plasma diagnosis, pulse holography and laser fusion. Solid state lasers are also used as excitation sources for tunable dye lasers.
At present, the ultraviolet laser marking machine used in the laser marking of products has the characteristics of high efficiency, high repetition rate, reliable performance, small size, good beam quality and stable power. Ultraviolet laser marking machine is used for marking non-metallic materials and is a new favorite in the field of laser marking. It makes up for the part of the product that cannot be processed by laser in the early stage. Even if it is processed, the precision is not high, and the marking technology cannot meet the needs of the product. The industrial application of ultraviolet laser, especially in the small power market, is becoming more and more extensive. Most food manufacturers have introduced UV equipment to replace the early ink-jet machines, because the first solution for food enterprises is environmental protection, no pollution, no maintenance, and high efficiency.
For food, first of all, the public thinks that the internal environment of the food production workshop is clean and sanitary, and there can be no pollution source. However, the traditional ink printing is only the source of pollution from the raw materials of the ink. After the ink printing machine is diluted with a reactive diluent, the long-term contact of the reactive diluent with acetone, methyl ethyl ketone, cyclohexanone, benzene, toluene, xylene, n-butanol, styrene, etc. will affect health and pollute the environment. Therefore, the application of laser marking machine can solve these pollution sources well. In particular, the focus of ultraviolet laser is very small. Due to the thermal effect of processing, it can greatly reduce the mechanical deformation of materials and affect the product quality, because it is mainly used for ultra fine marking, especially suitable for food packaging and medical packaging materials. Moreover, because the ordinary plastic packaging film will be uneven in the production process, the UV laser can also play a clear role in the non focal plane, and it is not easy to produce defective products. Improve the corporate image, and let consumers no longer worry about coding or unclear situation, so that they can clearly understand the production information of purchased products. The speed of ultraviolet laser is fast, which also greatly improves the production efficiency of the assembly line. The printing speed of ordinary plastic film can reach 300 meters/minute for single line characters, 200 meters/minute for double line characters, 600 bottles/minute for double line characters of beverage production line, and 80 meters/minute for two-dimensional code assembly line. This production speed can basically meet the production needs of most enterprises. Current application products: dairy products packaging (yogurt cup, soft packaging products, yogurt bottle cap), cosmetics packaging (glass cans, plastic bottles, plastic caps), daily necessities packaging (washing powder, liquid soap, disinfectant), noodles packaging, quick frozen products, ice cream packaging, bean products, translucent disposable packaging, etc.
For electronic information, it is necessary to ensure the accuracy of information, clear identification and permanence. However, for many materials, if the ordinary laser equipment cannot meet the technical requirements and the budget allows, the spot check of UV laser marking machines and UV equipment can be considered. The machining feature is that the handwriting is clearer, which can meet the external processing of plastic shells for most electronic products. Products that can be processed by UV laser printer: circuit board circuit diagram, computer keyboard keys, car keys, mobile phone shell, mobile phone charger, adapter, plastic shell of household appliances, bank U shield, etc.
Glass is made by melting silica with other chemicals (mainly soda ash, limestone, quartz). The continuous network structure is formed in the melting process, and the viscosity gradually increases during the cooling process, and the non-metallic silicate materials that cause crystallization are hardened. As a synthetic material, it emits a quiet and pure taste, showing the beauty of virtual reality in form, light, shadow, image, time and space and interest. The glass is beautiful, but not very beautiful. Then, each hairdresser uses various tools to paint on the glass to add color to the glass. Ultraviolet laser marking machine has gone beyond traditional processing and made up for the shortcomings of low processing accuracy, drawing difficulty, workpiece damage, environmental pollution and so on. With its unique processing advantages, it has become a new collection of glass products processing, which is necessary for each wine glass, craft gift and other industries. Different national languages, font styles, patterns, and laser marking processes are very convenient, adding a variety of options for laser personalized customization. Due to the combination of laser marking technology and numerical control system, after drawing on the computer, the ultraviolet laser marking machine will be able to say what you want to say or the patterns engraved on the product, showing a casual romantic atmosphere. In addition, most glass test tubes also use ultraviolet laser processing technology to mark test tubes, especially test tubes. In order to ensure more scientific data preparation, UV laser marking machine is used for marking test tubes with high calibration requirements.